pruritic

Prurigo nodularis （PN） is a chronic pruritic dermatosis of unknown etiology, characterized by firm, symmetrically localized hyperkeratotic pruritic papules and nodules.

结节性疹为一病因未明慢性瘙性发疹性皮肤病。其特点为突出于皮面角化过度丘疹、结节，烈瘙，呈对称性分布。

We recently encountered three old men with pruritic porokeratosis .We propose the term “eruptive pruritic papular porokeratosis” for describing this unusual variant of porokeratosis.

笔者近期诊断三例这样病患并推荐使用“发疹性瘙性丘疹管角化症”来命名这一特殊类孔角化症。